obstinacy
nounUK /ˈɒb.stɪ.nə.si/
US /ˈɑːb.stə.nə.si/
Obstinacy is when someone refuses to change their mind, even when they should.
His obstinacy made it impossible to agree on where to eat dinner.
RELATED WORDS
OTHER MEANINGS
2. The quality of being difficult to control or cure.
The obstinacy of the infection surprised the doctors.
3. The state of being hard to remove or overcome.
The obstinacy of the stain required three washes.
4. A refusal to obey or cooperate.
The child's obstinacy turned a simple chore into a battle.